Fig 1.

Molecular fingerprinting of S. Paratyphi A strains. Forty S. Paratyphi A isolates, including 26 clones isolated from the 2009 outbreak, an isolate from infected laboratory personnel (50661), 12 sporadic strains isolated during 2003 to 2008, and the ATCC 9150 reference strain were subjected to PFGE analysis using macrorestriction fingerprinting with XbaI. The isolate number, year of isolation, and the source are indicated adjacent to each pulsotype. Genetic similarity (%) was based on Dice coefficients and is presented by the phylogenetic tree.